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Across 1. an instrument used to construct and measure angles 4. identify a position 8. a triangle with 2 equal sides 10. a 4 sided figure with 2 parallel lines 13. a 4 sided figure with 4 equal sides and 2 sets of parallel lines 15. a polygon where all the sides are the same length 16. an angle that measures between 90 and 180 degrees 18. the construction of figures and the study of their properties 21. a 4 sided figure with 2 sets of equal lines and 2 sets of parallel lines 22. angles that sum 180 degres that form a C pattern 25. a triangle with a 90 degree angle 26. divides an angle into 2 equal parts at right angles 28. a triangle with no equal sides 29. begins at the endpoint and goes on forever in one direction 30. lines that cross eachother at a 90 degree angle 33. an instrument used to bisect angles 36. lines that will never cross eachother 37. formed by 2 rays or line segments with a common endpoint 39. a triangle with 3 equal sides 40. equal angles that form a F patter 41. angles that are formed when two lines intersect eachother .They are always equal. 43. the sum of the interior angles of a quadrilateral 44. a triangle with 1 angle that is between 90 and 180 degrees

Down 2. a line that crosses two parallel lines 3. an angle that measures 90 degrees 5. three sided closed figure 6. an angle that measures between 180 and 360 degrees 7. any closed figure 9. angles that total when added 180 degrees 11. an angle that measures less than 90 degrees 12. part of a line with 2 endpoints 14. a 4 sided closed figure 17. divides an angle into 2 equal parts 19. the common endpoint of an angle 20. lines that cross or meet eachother 23. angles that total when added 90 degrees 24. units that angles are measured in 27. an angle that measures 180 degrees 31. a 4 sided figure with 4 equal sides and 2 sets of parallel lines and 4 right angles 32. a triangle with 3 angles that are less than 90 degrees 34. equal angles that forma Z pattern 35. joins two vertices in a polygon 38. goes on forever in both directions 42. the sum of the interior angles of a triangle